im gettin a SLP catted x pipe but do not wanna spend the $$$$ on o2 extensions so i will be shutting off the rear sensors myquestion is what function do i select in the modify tune section to accomplish this also what do i use to seal the o2 bungs

 

Are you running LTs? If you're not, then you won't need the extensions.I believe it is in the OBDII section where you choose for the "Rear O2 Sensors" and turn it off. As far as filling in the holdes, just cut the wires off of your O2 sensors and screw them in since you are shutting them off.

 

no im running stock manifolds for now i didnt even think of using the stosk o2 sensors thanks man

 

sorry for not askin this in the begining but would my car run any different only running the front o2 sensors or will it have no affect what so ever

 

If you turn them off with the tuner, it's not going to affect it. I believe how it affects the car is by telling the ecu that the sensors are working fine or something, no issues with the smog. But if you are running a catted mid pipe, you shouldn't have to worry about shutting them off. Since you are using the stock manifolds, you don't have to worry about o2 extensions since the front o2 are in the same position.

 

ok even better i just thought that i read that you need them with a midpipe but i could be wrong

 

Your any after market midpipe stock/shorty uses the normal setup. If you get LTs, then you'll need the extensions.